I have an MG ZS EV registered Dec 2019. It's battery has now failed at under 22,000 miles . It had no service in 2021.

[Data]

Progress at last. Equipment to safely proceed eventually arrived from MG and the battery has now been opened, revealing a single bank of failed cells. Parts have ben ordered and MG have agreed to cover all of this under warranty, which is of course good news. Apparently MG need to intercept the cells when they arrive in the country and charge them to the same level as the remaining cells before sending them on to the Dealer for fitting etc. However, by the time we get the car back it will have been at the Dealership for at least 4 months, which can only be described as an appalling level of service.

This is great news Peter. So pleased it is getting sorted. In reality this was always going to be the outcome even if the warranty had expired as the vehicle is covered by consumer law that would have provided a fix. That is of course after ruling out failure through abuse. Do let us all know how she goes when you get her back.

This does show MG in a good light even though it has taken a while to sort out. I think they do try hard but are at the stage where the huge growth of the MG brand is continually outstripping their ability to react quickly. But if you notice, MG does listen to it's customers, as development of their vehicles has shown. Hopefully they can improve on issues like this in future.

 

[Peter Docherty]

UPDATE : The car has now been with the dealer for just over 6 months. They are still waiting for a replacement bank of cells. I am not happy and neither is the dealer as the car is occupying space in his workshop. The latest news from MG is that the parts may be here in February, but there have been rumours like that before. I didn't cancel my insurance cover because I thought [foolishly] that the issue would be resolved quickly. NFU are not cheap but they rarely argue. They have reimbursed my cover back to July last, as the car is currently covered by the dealership's insurance.

 

[Tim Green]

Surely you can reject the car as not fit for purpose?
It is not realistic to have thousands of £ worth of vehicle doing nothing.
Get rid!

 

[Lovemyev]

UPDATE : The car has now been with the dealer for just over 6 months. They are still waiting for a replacement bank of cells. I am not happy and neither is the dealer as the car is occupying space in his workshop. The latest news from MG is that the parts may be here in February, but there have been rumours like that before. I didn't cancel my insurance cover because I thought [foolishly] that the issue would be resolved quickly. NFU are not cheap but they rarely argue. They have reimbursed my cover back to July last, as the car is currently covered by the dealership's insurance.

I do have to question the decision to only install 1 single bank of cells, into the original pack ?.
Surely there is going to be a big indifference in cell voltages when the pack is reassembled ?.
I am curious to know how they are going to equally balance all of the cells.
Unless the replacement cell pack has already been balanced, to the same values as the remaining cells in the pack, but I doubt this somehow.

 

[Data]

I do have to question the decision to only install 1 single bank of cells, into the original pack ?.
Surely there is going to be a big indifference in cell voltages when the pack is reassembled ?.
I am curious to know how they are going to equally balance all of the cells.
Unless the replacement cell pack has already been balanced, to the same values as the remaining cells in the pack, but I doubt this somehow.

The new cell pack will be calibrated to match the rest of the battery pack before rebuilding. Otherwise the battery long term integrity & range will be affected.

 

[Everest]

The latest news from MG is that the parts may be here in February, but there have been rumours like that before.

Not good with such lengthy delays - let's hope they ship them before the Chinese New Year holidays start